Centrifugal machine.



No. 813,282. 9 PATENTED FEB. 20, 1906. B. H. BUTCHER.

GENTRIFUGAL MACHINE.

APPLICATION FILED JULY 3, 1905.

3 SHEETSSHEET l. M/ a" No. 813,282. 7 PATENTED FEB. 20, 1906.

E. H. BUTCHER. OENTRI'FUGAL MACHINE.

APPLICATION FILED JULY 3, 1905.

3 SHEETS-SHEET 2.

PATENTED FEB. 20, 1906.

vE. H. BUTCHER. GENTRIFUGAL MACHINE.

APPLICATION PILBD JULY 3, -1905.

3 SHEETS-SHEET 3.

unrrnn snares OFFTCEC ED'WAED H, DUTCHER, OF SlEGFRlED, PENNSYLVANIA, ASSlO-NOR, BY DIRECT AND MESNE ASSIGNMENTS, TO LEHTGH OlL AND WASTE SAVTNG COMPANY, OF CAMDEN,

NEW JERSEY.

QLTNTFNFUGAL WBAGHENEB E ic. S 3; 3,282.

Specification of Eietters Patent,

Patented Feb. 20, 1906.

Application filed July 3. 1905. Serial No. 268,105.

such connection it relates more particularly to the construction and arrangement of such zle connecte with the =housin a, is removably connected with the housing I a machine. a

The nature and scope of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof, in which Figure 1 is a view, partly in front elevation and partly in vertica central section, of the centrifugal oil extracting and filtering machine and illustrating the rece tacle for the oily material, the manner of hol ing the filtering material in position therein. and the means for supporting and rotating the same within a stationaryhousing. Fig. 2 is ahorizontal sectional view of the up er portion of the housing of the machine 0 Fig. 1 and a rece tacle for oily material arranged therein an also illustrating the construction of the side walls of the receptacle formed of filtering material and of 1Eperforated and loose wire netting walls. ig. 3 is a horizontal sectional View of the lower portion of the housing of the machine of Fig. 1 illustrating a turbine connected With the rece tacle-and the steam-inlet nozand blades arranged opposlte openings in t e lower end of the rece tacle, forming an exhaust fan adapted to force the steam ejected from the turbine-blades into. and through the receptacle and the oily material therein; and Fig.

4 is a detail View illustrating in side elevation a projection of the housing Servin as a catch for a spring for locking the lid to t e housing.

Referring to the drawings, a, is the stan ard of the machine, to the upper end of which is suitably secured a housing a, annular in cross section, having a cover a prov1ded with an openingofi. This openingis normally closedby a lida, which by means of 'a leafspring a secured to the under side of the lid 1 by engaging projections a thereof, as shown in Fi 1. However, the cover a may be dispensed with, and the lid a may be directly connected with the housing (2. A shown in Fig. 4, each of the projections a? 18 provided with an inclined surface a, which guides the spring a into a depression a serving as a lock for the spring a which prevents a readyunlocking of the same from the projections a". The housing a is provided w th a centrally-arranged projection a, extending into the standard a, which serves as a support for a shaft a The shaft a within the housing 0/, serves as a support for a basket or receptacle 6, adapted to receive material more or less saturated with oil, which is to be extracted therefrom. The material, consisting of cotton-Waste or other fibrous material, rags, wood shavin s, sawdust, and the like, is introduced into t e receptacle 1) by removing the lid a closing the opening a, and then replacing the same on the cover a? The basket or rece tacle 1) preferably consists of an annular islr or bottom plate I), stren thened by ribs 32 having a central upward y-projecting portion b forming a chamber 12*, and a support for a ball-bearing b centrally enga 'ng the upper surface of the shaft (1, and o a roller-bearing b, surrounding the shaft adjacent to the ball-beariri b Thesebearings in conjunction with a ro lerbearing 8 arranged in an extension I of the projection b serve to support the plate I) on the shaft a and to permit ofan easy turning of the same thereon. The plate 1; adj acent to its erirneter is provided with a flange b, which olds a perforated cylinder b", caraddition to the perforated cylinder 1) the late I) is provided with a second cylinder if", preferably formed of coarse-meshed wirenetting, which in conjunction with the cylinder 1) forms an annular chamber for the reception of a suitable filtering material 0, as shown in Figs. 1 and 2. The wire-netting forming an inner side wall I) is preferably held in position by annular springs b, which tend to force the same against the filter material c, and which springs when disengaged therefrom permit of a ready removal of the inner wall I) and of the replacing of the filter material 0, as the wall is in no way connected with the plate 5. At its upper end the pertac l'e I).

forated outer wall Z) is provided with an annular flange 1), extending over the filtering material 0 and projectinga certain distance over the basket or receptacle 1), formed by the bottom plate 1), side walls I) and b, and filtering material 0. In this receptacle is placed the material from which oil is to be extracted, and the projecting flange b serves to hold this material in the receptacle when the same is forced against the inner wall I) by the rapid rotation of the recep- The inner wall I) under the influence of centrifugal force and the pressure exerted thereon by the material from which oil is to be extracted is forced against the outer perforated wall I). The filter material 0, placed between the outer and inner yielding walls, is thus compressed and securely held in position between the walls I) and 19 As shown in Figs. 1 and 3, below the bottom plate I) and secured to the extensionb of the projection b is arranged an annular disk d, which is provided adjacent to its outer periphery with curved. blades d, radially arranged with respect to the shaft a. This disk d, in conjunction with a nozzle e, arranged tangentially with respect to the blades d in the wall of the housing a, forms a turbine, and the motive power is furnished by steam introduced into the nozzle 6 by means of a pipe 6 from any suitable generator. (Not shown.) The jet of steam issuing from the nozzle 0 and impinging against the blades (1 sets the disks d and the receptacle 0 in rapid rotation, and by the same and the centrifugal force all the oil in the material placed in the receptacle 1), as well as the impurities and other extraneous matter in the same, is liberated therefrom and forced into the filtering material 0 by readily passing through the inner wall I). The filtering material 0, however, arrests all these impurities, not alone of the oil extracted from the waste material, but also those formerly held by the oily material, and only permits the extracted oil to pass therethrough. The oil when i finally leaving the filtering material 0 and passing through the openings in the outer wall I) is in a thoroughlypurified state, ready again for use. Owing to the centrifugal force, this oil is-forced through the chamber e formed between the receptacle 6 and the housing a and against the inner wall of the same and by flowing downward thereon is finally conducted by the inclined bottom a of the housing a and tubes at", arranged therein, into a settling-chamber a, formed in the standard a bya partition-wall a, as shown in Figs. 1 and 4.

. I11 addition to rotating the receptacle b the steam is also utilized to heat the oily material and to thinthe oil therein, and thus facilitate the removal and extraction of the oil centrifugal force assisting the springs b in their action when the machine is actuated.

In order to conduct the steam into the receptacle b and to force the same through the oily material therein, the extension b is provided with curved blades forming an exhaust-fan, which durin t e rotation of the receptacle b conducts t e steam leaving the turbine-blades d through openin s 1), ar ranged in the plate 1), mto the chamber b of the projection b and from the same, by means of openings b into the interior of the receptacle 5. The steam by passing beneath the plate 6 and through its projection b heats the bottom and central portion of the receptacle 1), and thereby the oily material therein, and by forcing its way therethrough further heats the same and thins the oil.- By the thinning of the oil a more speedy and complete extraction is made possible. Furthermore, dirt and extraneous matter clinging to the waste material is loosened, and its removal by centrifugal force is facilitated. The steam finally leaves the receptacle a through the opening formed by the flange b and passes into the chamber (L15, from which the same escapes through an opening (1 arranged in the housing a. As shown in Fig. 1, this opening 01, is covered by a guard-plate a which prevents oil from passing through the same. A certain portion of the steam by being brought in direct contact with the oily material is condensed therein, and the water so formed, in conjunction with the oil, is forced through the filtering material into the housing a, and flows from thence into the settling-chamber (r by means of the pipes 0 The oil. being of less specific gravity than the water, will readil separate there from in the chamber (1 an by means of the pipe 9 will be conducted from the same. A drain-cock 9, arranged in alinement with the partition-wall a, permits of the draining of the accumulated water from the chamber a, as shown in Fig. 1, The oily material in the receptacle b after having been thus treated is left therein thoroughly clean and ready for further use, as oil, dirt, and other extraneous matter have been completely removed therefrom. The receptacleb is provided with automatic brakes, each consisting of a Wing h, pivotally secured to the perforated side wall b and held in engagement therewith by leafsprings h, as shown in Fi s. 1 and 2.

Beneath the turbineisk d and secured thereto is arranged a plate 11, surrounding the shaft a Opposite the disk 1' is arranged a ring k, having a proj ectioh k, preferably passing through one of the pipes at and terminating above a cam Z, carried by a shaft Z, supported by the standard a. When the shaft 1 is turned by means of a handle P, the cam Z is brought into engagement with the projecjection k, which by raisin the'ring 7c forces the same against the plate 'b, and thus retards and finally stops the rotation of the receptacle b.

As shown in Fig. 1, the nozzle 6 is provided with an opening 6, into which b means of a receptacle m, preferably formed lnte ral with the ousin a, a certain portion 0 the extracted an filtered oil is collected by flowing into the receptacle m and is conducted into the steam passing through the nozzle 6, which vaporizes and carries the same in this state into the chamber b of the receptacle 1),

and into the ball-and-roller bearings 6 b", and b arranged therein. Thus the bearings are continuously lubricated durin the rotation of the rece tacle b, and all t e moving parts are coate with oil, which renders the same rust-proof.

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a centrifugal oil extracting and filtering machine, a housing and a receptacle for an oil-containing material having a bottom late with a fixed outer wall and an expansifile and contractible inner Wall, said 1nn er and outer walls forming a chamber, wherein filter material is adapted to be placed, springacting means adapted to hold said inner wall in re uired varyin positions with respect to said lter materia and the latter with sald outler wall, and means for rotating said receptac e.

2. In a centrifugal oil extracting and filtering machine, a stationary housing and a receptacle for an oil-containing material having a bottom late with a fixed perforated outer wall and a movable perforated inner wall, said inner and outer Walls forming a chamber, wherein filter material is adapted to be placed, sprin s ada ted to engage sald inner wall so as to orce the wall against said filter material and the latter against the outer wall and means for rotating said receptacle.

In testimony whereof I have hereunto set my signature in the presence of two subscribing witnesses.

EDWARD H. DUTCHER. Witnesses:

R031. L. COPE, ROBERT M. CoR'rRIGH'r. 

